Home / 11,331.40-17,005.20-4,762.30

Finding the Fourth Proportional to 11,331.40, 17,005.20 and 4,762.30

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Solution

The fourth proportional to 11,331.40, 17,005.20 and 4,762.30 is: 7,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.40 : 17,005.20 = 4,762.30 : x
  2. Step 2: Convert to fraction form
    11,331.40/17,005.20 = 4,762.30/x
  3. Step 3: Cross multiply
    11,331.40x = 17,005.20 × 4,762.30
  4. Step 4: Simplify right side
    11,331.40x = 80,983,863.96
  5. Step 5: Solve for x
    x = 80,983,863.96/11,331.40
  6. Step 6: Final answer
    x = 7,146.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.